Badminton playing long time back pain, mainly consider the occurrence of lumbar muscle strain, can be relieved under the guidance of the doctor through rest, physical therapy and medication. 1. rest: when the symptoms of lumbar pain should immediately stop activities, pay attention to rest, if necessary, can wear waist protection to prevent excessive activities. 2. Physiotherapy: Under the guidance or operation of professional doctors, appropriate acupuncture, massage, infrared and other physiotherapy methods can be carried out to alleviate the symptoms of local muscle pain. 3. Medication: non-steroidal anti-inflammatory drugs such as ibuprofen, sodium rosoprofen, celecoxib and other drugs can be used as prescribed by the doctor to relieve pain, and lidocaine and trimethoprim can be used for localized closure therapy if necessary. It is recommended to go to the hospital in time to avoid delaying the condition, do not blindly use drugs.